Doffing mechanism for spikninq



Sept. 14,1926. Re. 6,420

T. A. BOYD ET AL DOFFING IECHA NISI FOR SPINNING, TWIS'I'ING, AND LIKE FRANES Original Filed Sept,. 4, 19 25 ATTORN EYS i M 1m tion' refersfto s innin twistmm the'flyer's'are bobbinsremoved from spinpefiion end empty put in their by I niechanisrn and inwhich the mounted on rotatable carriers two ormore bobbins ke'bobbins being in the same the relative fiver and the thirspindles-so-ifi p with the fiyer tli'e on which the bobaremounted being disposed horii 'iuitoble'heightand distance in m 'flyer'leg's, whether behind or w fie v. phn'efis the 'flyers. According to the "ally-t reoeive'i: rod or other brown m 'haiiismiore group bifiii2forthe=axle mented-on-i-pokers or up sud-down by ni'eo'h s'm. Whenabobfilled with yarnn'nd the ma.- .cll estopped. the bobbin carrier and axle af gw atednntil the mu bobbin is ed sleii'pf the lend snemptv bob in: into msition; Snrpus {hand is wound fronr the full on to the bobbin and the van! is then severed 31b, aqtnationbftbqmd. c

be ne'c'oinpmvinsrdm m Fig.- 1 is t n shqwinsthe arrangeeqbobbins "m relation to the fiver so imitmne for worsted. Fi n-2 is vi w of tbebobbin carrier and Figs. 3 Mums section and a. plan of my device. a 'stntinnarv horizontal top fiver istince apart, with their axes ver- '2 having depending legs and nearitso upper end below the wharve 2 by which it may be driven usual manner. The vsrn 3- to passes down through the flyer bear- M the 'curl 2 at theend of one flyer and thence to the spinning bobbin 4. 'At

" le' dishncein front of the fiyers and .:;;.vs?rA'rs-s o j r wn h it is m'eveduinto workin'gpojflye'rs, 'or in'the's'ame verthe 1 x10? member "or members is or some operate yam cuttin (fa-1,

a i practice extends along one side In the rai -1 ,are mounted at the-dyer 2 when at its highest position we mount a tube 5 disposed honzontslly' 'and parallel with the rail 1.

The tube 5 is supported for rotation in spaced bearings 6 carried at the upper ends ofirettieal poker slides 6 to which is imparted a traverse downnnd up. At a suitable distance behind'the-siides 6 is atraverse shaft on'whieh is fixed for eschslide a chuin pnl'ley 8 from which a chain 9 extends to the lower end 6 of the slide. oscillatory motion is imparted to the-shaft 7 bv usual mechanism. 'Oppo'site each fiver there is monnted' 'on the tube 5 n bobbin carrier 10 having a 10 embreingthe tube fi: On the $1ITY10' of the bobbin Barrier ismounted an'uppe'r stud H cosxial' with the fiver 2, on-thestud 11 is *i'm'pal'ed the] spinning bobbin -en towhich-the yarn is'spun, On

the urmdO of the bobbin czirrierlO is fixed slower stud-12 'parslle} with the stud 11 and so positioned thzitwh'en {the tube 5 and bobbin IWperfOrm-i' semi-rotation about the ifisof the tube: the stud 11 ambbobbirr and fl fi l i and bobbin change places.

Thus when the unper spinning bobbin 4 has been filled. the frame is stopped and the bobbin carrier 10 given one 'halfrotation V ward and downwards. it carries with it the spunthread 3 extending from the fiver leg 2. The flyer 2'is now given a few rotations to wind yarn from the full bobbin 4 back to the empty bobbin 4 readv to be severed and to start spinning. To facilitate this winding from bobbin to bobbin a. pair of antifriction rollers 13 are mounted on the bobbin carrier 10. On the boss 10 of the bobbin carrier 10 are formed ribs 14 through each of which is bored :1 hole 14? paralIel with the tube 5. In the hole in each rib is mounted a cy indrical lunger 15 so as to be an easy-fit. The rib and plunger are notched. affording a passage "15 into which the yarn passes from the flyer 2 to the dofl'ed bobbin, so that when the plunger 15 receives an endwise movement it will sever the yarn. Motion' is imported to the plunger 15 by a rod 16 mounted within the tube ,5 and fittedi with pins 11' each extending through slots in the ribs 14 and boss 10 of the relative bobbm carrier and enterin diametral orifices in theplungers 15 "so t at when the 'rod 16 is moved endwise it entrainstheplun ers 15, and thus serersthe yarn 3 After e yarn 3 is severed, the frame is re-started. The full bobbins dare then removed and empty bobbins 4 put in their places. a

What we claim is 1- 1. In a spinning, twisting or like frame, in combination, a fl er rotatable on a vertical axis, an axial y bored axle member rotatable on a horizontal axis, a bobbin carrier mounted on said axle member, said carri'er serving to support a plurality of bobbins-in the same vertical plane as said flyer' and adapted 0n rotation with said axle member to bring the bobbin to be filled into coaxial relation with said'flyer, and yarn cuttingmeans including a member movable in the bore of said axle member.

2. In a spinning, twisting or like frame, in combination, a flyer rotatable on a vertical axis, an axially bored axle member rotatabl'e on a horizontal axis, a bobbin car-' rier mounted on said axle member, said carrier serving to support a plurality of bobbins in the same vertical plane as said flyer and adaptedon rotation with said axle membar to bring the bobbin to be filled into coaxial relation with said flyer, and yarn cutting-mans including a. rod movable in thebore of said axle member, and'yarnengaging plungers one for each bobbin connected to said rod: 7 a

3. In a spinning, twisting or like frame, in'com'bina'tion, aflyer rotatable on a vertical axis, an axially bored axle member rotatable on a horizontal axis non-planar with the axis of said flyer, a bobbin carrier mounted on said axle member, said carrier serving to support a plurality of bobbins in the same vertical plane as said flyer and adapted on rotation with said axle member to bring the bobbin to be filled into coaxial relation with said flyer, and yarn cutting means including a member movable in the bore of said axle memben. t

4. In a spinning, twisting orlike frame, 1n combination, a flyer, a rotatable :cgwier,

member and rotatable to bring a bobbin to be-filled into operative relation with said tlyer, ayarn cutter and a rod movable with-' in said tubular axle member to operate said cutter.

6. In a spinning, twisting or like drame,

in combination, a horizontal flyer rail, 8. flyer supported by said rail for rotation on a vertical axis, a horizontal axle member parallel to said rail and non-planan with the axis of said flyer, and a bobbin carrier mounted on said axle member for rotaw tion upon the axis of said member, said carrier serving to support a pluralityof'bobbins in the same vertical plane as said flye-r and adapted on rotation to bring the bobbin to be 7 filled into coaxial relation with said flyer. 1

1n testimo ywhere'of we'afiix our signer tures.

THOMAS ALEXANDER BOYD. HAROLD ARTHUR BOYD. JAMES BOYD. Y 

